Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2023 11:12

General

  • Target

    tmp.exe

  • Size

    5.5MB

  • MD5

    a92a908cae30b9b020244bedf61a1dd4

  • SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

  • SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

  • SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • SSDEEP

    98304:pHrMX3ZbN6mocwdMpXYI6A2XwY0o7r5QBa2lAo3WTsKVnd/9lSD/WFIxUBzqHy:1MnZZPocwGpoRRXwY9rb2moBKVd/9lEJ

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 8 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\s1og.0.bat" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2772
      • C:\ProgramData\Roaming\O.exe
        "C:\ProgramData\Roaming\O.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of WriteProcessMemory
        PID:2760
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /RL HIGHEST /tn "O" /tr C:\ProgramData\Roaming\O.exe /f
          4⤵
          • Creates scheduled task(s)
          PID:2208
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4C120ADE-71D8-4C1F-B940-6CD1A6DED354} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\ProgramData\Roaming\O.exe
      C:\ProgramData\Roaming\O.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:308
    • C:\ProgramData\Roaming\O.exe
      C:\ProgramData\Roaming\O.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:2004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Roaming\O.exe

    Filesize

    5.5MB

    MD5

    a92a908cae30b9b020244bedf61a1dd4

    SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

    SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

    SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • C:\ProgramData\Roaming\O.exe

    Filesize

    5.5MB

    MD5

    a92a908cae30b9b020244bedf61a1dd4

    SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

    SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

    SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • C:\ProgramData\Roaming\O.exe

    Filesize

    5.5MB

    MD5

    a92a908cae30b9b020244bedf61a1dd4

    SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

    SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

    SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • C:\ProgramData\Roaming\O.exe

    Filesize

    5.5MB

    MD5

    a92a908cae30b9b020244bedf61a1dd4

    SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

    SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

    SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • C:\Users\Admin\AppData\Local\Temp\s1og.0.bat

    Filesize

    168B

    MD5

    13195858fd7718c422bd01df9a56337e

    SHA1

    6d19d50cdfc691b84bb9486b4864d0d96fc94b8a

    SHA256

    ef72348b27a53a53beba54dfb4315a40ae85d708cdc035380c7c6affe5c6074b

    SHA512

    0878dde0b4ef18ad492692e4c2bad41fca6e8e06f584314fb283f0e5b841d65ca22c7d0de9dcb855f9559e6cfb0d508407328c67c1c74f43a88cdfbf16684cd5

  • C:\Users\Admin\AppData\Local\Temp\s1og.0.bat

    Filesize

    168B

    MD5

    13195858fd7718c422bd01df9a56337e

    SHA1

    6d19d50cdfc691b84bb9486b4864d0d96fc94b8a

    SHA256

    ef72348b27a53a53beba54dfb4315a40ae85d708cdc035380c7c6affe5c6074b

    SHA512

    0878dde0b4ef18ad492692e4c2bad41fca6e8e06f584314fb283f0e5b841d65ca22c7d0de9dcb855f9559e6cfb0d508407328c67c1c74f43a88cdfbf16684cd5

  • \ProgramData\Roaming\O.exe

    Filesize

    5.5MB

    MD5

    a92a908cae30b9b020244bedf61a1dd4

    SHA1

    a45bf660ae267b2c8027327b2b97c61faa88d9ae

    SHA256

    ae14b287be4c2cb072802d65693beeb9efecefd6e6de5994abe49546b8ca0308

    SHA512

    beab8787db9e978c0db067f0cbc2acff56033f1343bbde5ed6ff364b9ce241cdac00c33f66e799ad6a693a7dd7eb54274c11010fa4c087b18a31fb408cd10fba

  • memory/308-54-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/308-55-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/308-53-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/308-48-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/308-43-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2004-66-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2004-71-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2004-72-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2004-73-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-22-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-0-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-11-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-10-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-9-0x0000000077A40000-0x0000000077A42000-memory.dmp

    Filesize

    8KB

  • memory/2176-4-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2176-1-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2660-27-0x0000000001FB0000-0x0000000002DAA000-memory.dmp

    Filesize

    14.0MB

  • memory/2760-39-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2760-38-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2760-37-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2760-32-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB

  • memory/2760-28-0x0000000000400000-0x00000000011FA000-memory.dmp

    Filesize

    14.0MB